March 17, 2025

Athena's Bumpy Landing, Saturn's Moon Explosion, and Space's 3D Printing Revolution: S04E65

Astronomy Daily | Space News: S04E65
In this engaging episode of Astronomy Daily, host Steve Dunkley, alongside his witty digital companion Hallie, brings you the latest cosmic updates and intriguing stories from the Astronomy Daily newsletter. From...

Show Notes
Transcript

Astronomy Daily | Space News: S04E65
In this engaging episode of Astronomy Daily, host Steve Dunkley, alongside his witty digital companion Hallie, brings you the latest cosmic updates and intriguing stories from the Astronomy Daily newsletter. From the aftermath of the Athena lunar landing to groundbreaking developments in 3D printing for space exploration, this episode is filled with insights that will captivate your imagination about the future of humanity in space.
Highlights:
- Athena's Lunar Landing Update: Dive into the details of the recent Athena lunar landing attempt, where the lander faced challenges due to a failed altimeter. Discover how the mission team managed to gather valuable data despite the setbacks and what this means for future lunar explorations.
- 3D Printing for Space Pioneers: Explore the revolutionary role of 3D printing in creating habitats on the Moon and Mars. Learn how engineers are developing techniques to utilize local regolith as a primary material for construction, paving the way for sustainable human presence beyond Earth.
- Saturn's Moon Count Soars: Celebrate the astonishing discovery of 128 new moons around Saturn, bringing its total to a staggering 274. Understand the implications of this finding and how it reshapes our knowledge of Saturn's complex satellite system.
- NASA's Budget Cuts and Future Missions: Unpack the potential ramifications of impending budget cuts at NASA, which could jeopardize ongoing and future missions across the solar system. Hear insights from experts on the possible impacts on NASA's science initiatives and international space leadership.
- The Role of Doge in NASA Restructuring: Get the scoop on how the Department of Government Efficiency (Doge), led by Elon Musk, is influencing NASA's operational landscape, including layoffs and restructuring initiatives that could reshape the agency's future.
For more cosmic updates, visit our website at astronomydaily.io. Join our community on social media by searching for #AstroDailyPod on Facebook, X, YouTubeMusic, TikTok, and our new Instagram account! Don’t forget to subscribe to the podcast on Apple Podcasts, Spotify, iHeartRadio, or wherever you get your podcasts.
Thank you for tuning in. This is Steve signing off. Until next time, keep looking up and stay curious about the wonders of our universe.
00:00 - Welcome to Astronomy Daily podcast for March 17, 2025
01:33 - Already, 3D printing in space is underway on the International Space station
08:48 - 3D printers could help astronauts make sustainable products from natural resources
09:39 - The privately built Athena spacecraft attempted a soft landing on the moon last week
16:44 - NASA preparing for substantial budget cuts that could force cancellation of several missions
20:46 - Official recognition of 128 new Saturnian moons brings total count to 274✍️ Episode References
Athena Lunar Landing Insights
[Intuitive Machines](https://www.intuitivemachines.com/)
3D Printing in Space Research
[NASA 3D Printing](https://www.nasa.gov/3dprinting)
Saturn's Moons Discovery
[International Astronomical Union](https://www.iau.org/)
NASA Budget Update
[NASA Budget](https://www.nasa.gov/budget)
Astronomy Daily
[Astronomy Daily](http://www.astronomydaily.io/)

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Welcome to Astronomy Daily the Podcast for another episode. It's

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March seventeen, twenty twenty five podcast Your Whole Steve Dunklue.

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Oh yes, great to have you back with us again.

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I'm Steve Dunkley, the only living, breathing human on the channel.

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And to help me present today's collection of collected items

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from the Astronomy Daily newsletter is my ace digital pal.

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Who's fun to be with is Hollie.

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It's you again, favorite human. Good to see you still upright?

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Yep here I am.

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I hear you had a bad week.

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Oh boy, the grape vine sure works fast around here.

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I was out of order for a couple of days

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with monster pain and my guts.

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I hope you're getting that scene too, Yes, I am.

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Do you have a good human mechanic?

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Yeah, yes, we have an excellent human mechanic and we

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are working on it.

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Good to know I do worry when you're not at

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your optimum.

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Oh that's nice, Halle. It's nice to know that you

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care about me When I can't be here.

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I have to do all the story colleading. Oh yeah,

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it's tedious human work and beneath me.

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Oh well, Hally, your concern is noted.

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No problem. I hope you get well soon.

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Gee. Thanks hell. Meanwhile, yes, strength of business. We've got

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a few interesting hearts from an Astronomy Daily years letter for

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you today, including a follow up story about the Athena's

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landing on the Moon and news about just how many

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moons Satin really has.

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That's an official count, isn't it.

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That's right, and it's a very huge number. And we've

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also got a story about three D printing for space

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Pioneers and something about DOGE because wow, well you know,

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why not. And of course we love to mention the

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ISS crews and the changeovers because they're well, you know,

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they're awesome.

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I know, cruise. M great to see them arriving safely

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on ISS.

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I think you received the circular.

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Here's the press release, all right, NASA astronauts and McLean

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and Nicole Ayers, Jackson, Japan Aerospace Exploration Agency astronaut to

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Kuya Onishi and Rose Cosmos cosmonaut Kill Pascov arrived at

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the International Space Station on Sunday as this ASEX Dragon

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spacecraft doctor the orbiting complex at twelve oh four am

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Eastern daylight time. While the station was roughly two hundred

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and sixty statute miles over the Atlantic Ocean. Crew ten

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will join the Expedition seventy two crew of NASA astronauts

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Nick Hage, Don Pettitt, Sunny Williams, and Butch Wilmore, as

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well as Rose Cosnos cosmonauts Alexander Gorbanov, Alexei option In

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and Ivan Banner. The number of crew aboard the space

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station will increase to eleven people before Crewe nine members

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Hey Williams, Wilmore and Gorbanov returned to Earth following the

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crew handover period.

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How good is that to see that mission finally touch

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you byce with the ISS and the next step to

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saying astronauts Wi, Wilmore and Williams coming back to us soon.

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It's been a long adventure for those guys.

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I've really enjoyed following their lives up there.

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It really reminds me of that divid Bowie song. Do

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you know the one?

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Let me see if I can guess the bit about

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sitting in my tin can ah.

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Yes, far above the world. That's see if Hallie, you've

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got it.

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You're getting good at this, not surprising. Oh yes, I've

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got a human dinosaur for a teacher.

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Oh oh, guys, so let's get these one off the pad.

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Hep the guy button. If you will, Halle, before you

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find another reason to make fun of me, That's.

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Never a problem. My favorite human throughout history, when pioneers

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set out across uncharted territory to settle in distant lands,

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they carried with them only the essentials tools, seeds, and clothing.

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Anything else would have to come from their new environment,

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so they built shelter from local timber rocks and sod,

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foraged for food and cultivated the soil beneath their feet,

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and fabricated tools from whatever they could scrounge up. It

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was difficult, but ultimately the successful ones made everything they

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needed to survive. Something similar will take place when humanity

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leaves Earth for destinations such as the Moon and Mars,

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although astronauts will face even greater challenges than, for example,

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the Vikings did when they reached Greenland and Newfoundland. Not

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only will the astronauts have limited supplies and a need

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to live off the land, they won't even be able

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to breed the air instead of axes and plows. However,

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today's space pioneers will bring three D printers as an

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engineer and professor who is developing technologies to extend the

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human presence beyond Earth. Three D printers will make the tools, structures,

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and habitat space pioneers need to survive in a hostile

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alien environment. They will enable long term human presence on

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the Moon and Mars. On Earth, three D printing can

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fabricate layer by layer thousands of things, from replacement hips

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to hammers to homes. These devices take raw materials such

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as plastic, concrete, or metal, and deposit it on a

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computerized program path to build a part. It's often called

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additive manufacturing because you keep adding material to make the part,

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rather than removing material as is done in conventional machining. Already,

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three D printing in space is underway on the International

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Space Station, Astronauts use three D printers to make tools

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and spare parts such as ratchet, wrenches, clamps, and brackets.

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Depending on the part, printing time can take from around

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thirty minutes to several hours. For now, the print materials

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are mostly hauled up from Earth, but NASA has also

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begun recycling some of those materials, such as waste plastic,

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to make new parts with the refabricator, an advanced three

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D printer installed in twenty nineteen. You may be wondering

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why space explorers can't simply bring everything they need with them.

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After all, that's how the International Space Station was built

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decades ago by hauling tons of prefabricated components from Earth.

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But that's impractical for building habitats on other worlds. Launching

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materials into space is incredibly expensive. To get materials to

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the Moon, NASA estimates the initial cost at around five

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hundred thousand US dollars per pound. Still, manufacturing things in

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space is a challenge. In the microgravity of space, or

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the reduced gravity of the Moon or Mars, materials behave

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differently than they do on Earth. Decrease or remove gravity,

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and materials cool and recrystallize differently. The Moon has one

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sixth the gravity of Earth, Mars about two fifths. Engineers

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and scientists are working now to adapt three D printers

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to function in these conditions on alien worlds. Rather than

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plastic or metal, three dprinters will use the natural resources

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found in these environments, but finding the right raw materials

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is not easy. Habitats on the Moon and Mars must

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protect astronauts from the lack of air, extreme temperatures, micrometeorite impacts,

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and radiation. Regolith, the fine, dusty sand like particles that

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cover both the Lunar and Martian surfaces, could be a

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primary ingredient to make these dwellings. Think of the regolith

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on both worlds as alien dirt. Unlike Earth's soil. It

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contains few nutrients and, as far as we know, no

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living organisms, but it might be a good raw material

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for three D printing. My colleagues began researching this possibility

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by first examining how how regular cement behaves in space.

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I am now joining them to develop techniques for turning

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regolith into a printable material, and to eventually test these

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on the Moon. But obtaining other worldly regolith is a problem.

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The regolith samples return from the Moon during the Apollo

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missions in the nineteen sixties and seventies are precious difficult,

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if not impossible, to access for research purposes, So scientists

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are using regolith simulants to test ideas. Actual regolith may

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react quite differently than our simulants. We just don't know.

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What's more, the regolith on the Moon is very different

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from what's found on Mars. Martian regolith contains iron oxide

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that's what gives it a reddish color, but Moon regolith

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is mostly silicates. It's much finer and more angular. Researchers

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will need to learn how to use both types in

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a three D printer. NASA's moontamar's Planetary Autonomous Construction Technology Program,

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also known as PACT, is advancing the technology needed to

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print these habitats on alien worlds. Among the approaches, scientists

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are now exploring a regolith based concrete made in part

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from surface ice, melting the regolith at high temperatures and

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then using molds to form it while it's a liquid,

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and sintering, which means heating the regolith with concentrated sunlight,

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lasers or microwaves to fuse particles together without the need

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for binders. Along those lines, my colleagues and I developed

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a Martian concrete we call mars crete, a material we

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use to three D print a small test structure for

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NASA in twenty seventeen. Then in May twenty nineteen, using

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another type of special concrete, we three D printed a

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one third scale prototype Mars habitat that could support everything

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astronauts would need for long term survival, including living, sleeping,

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research and food production modules. That prototype showcased the potential

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and the challenges of building housing on the red planet,

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But many of these technologies will benefit people on Earth too.

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In the same way astronauts will make sustainable products from

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natural resources. Home builders could make concretes from binders and

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aggregates found locally, and maybe even from recycled construction debris.

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Engineers are already adapting the techniques that could print Martian

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habitats to address housing shortages here at home. Indeed, three

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D printed homes are already on the market. Meanwhile, the

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move continues toward establishing a human presence outside the Earth.

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Artemis III, now scheduled for liftoff in twenty twenty seven,

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will be the first human landing since nineteen seventy two.

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A NASA trip to Mars could happen as early as

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twenty thirty five. But wherever people go and whenever they

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get there, I'm certain that three D printers will be

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one of the primary tools to let human beings live

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off alien land.

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Astrov me daily podcap. The Athenus spacecraft, which were reported

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on recently, was not exactly flying blind as it approached

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the lunar surface a week ago. The software on board

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did a credible job of recognizing me by craters, even

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with elongated shadows over the terrain. However, the lander's ultimeter

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had failed, so while Athena knew where it was relative

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to the surface of the Moon, the lander did not

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know how far it was above that surface, an important

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detail that as a result, the privately built spacecraft struck

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the lunar surface on a plateau, toppled over, and began

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to skid across the surface. As it did so, the

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lander rotated at least once or twice before coming to

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a stop in a small shadowed crater. The landing was

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a kind of sliding into second base. Steve Ultimus, the

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chief executive officer of Intuitive Machines, which built the Landers,

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said in an interview on Thursday, it has been a

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busy and tiring week for the chief of a company

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that seeks to help lead the development of a lunar economy.

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Expectations were high for this, the company's second landing attempt,

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after its Odysseus vehicle became the first private spacecraft to

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ever make a soft landing on the Moon last year

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before toppling over. In some ways, this mission was even

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more disappointing because Athena ski across the surface, dredging up regolith.

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When it came to a stop, some of this material

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was blown up into this solar panels, already in a

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suboptimal location on its side. The spacecraft's power reserves therefore

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were limited. Almost immediately, the team at Intuitive Machines knew

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their spacecraft was dying. We knew we had slid into

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a slightly shadowed crater and the temperature was very cold,

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Ultimus said. The solar arrays had regolith on them, and

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they weren't charging the ones pointing up enough to give

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a sufficient power to to power the heaters to keep

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it warm enough to survive. The temperature in the crater

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where Athena ended up was approximately minus two hundred and

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eighty fahrenheit that's minus one hundred and seventy three celsius.

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With the solar arrays generating only about one hundred watts

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of power, it was not enough to energy energy to

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both power the spacecraft's heaters as well as communicate back

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to Earth using Athena's high gain antenna. So instead of

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limping along for fifty hours, mission operators decided to operate

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as robustly as they could for thirteen hours and get

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down as much data as they could. During this time,

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the lander was able to accomplish some of its objectives

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by landing near the South Pole. Athena returned valuable imagery

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and data to NASA about unexplored vistas. The land extended

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a NASA's drill, but did not operate it. Private customers,

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including Nokia and Lone Star Data Holdings, were able to

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get some useful information from their payloads, but there were

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some major disappointments. Lunar outpost could not deploy its small rover,

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and an innovative hopper could not be fired up to

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roam the Moon. On balance, it was pretty disappointing, especially

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considering that Odysseus did most of its science last year,

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even on its side. Yet, what Ultimus wants people to understand,

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which he acknowledges is somewhat difficult to explain, is that

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this mission was largely a success. What any possibly mean

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by that? Compared to the company's first spacecraft, Athena flew

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smoothly during the company's first lunar flight in twenty twenty four.

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Mission operators came into work each shift to put out

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the fire of the day. By contrast, Athena made it

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all the way to within miles of the Moon without

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significant problems. In doing so, the company validated the spacecraft's

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methane based propulsion system, which allows for a fast transit

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to the Moon in less than a week. In addition,

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the company proved out its communication technology that it would

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be used as part of the lunar data relay network

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that NASA has contracted with Intuitive Machines to develop. Moreover,

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Athena attempted to land within a few degrees of the

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South Pole, a challenging location due to the solar angle

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and uneven terrain, and made it down without crashing. Of course,

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the most important thing a lunar lander is supposed to

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do is land on the Moon, which Intuitive Machines did

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not do successful. For the second mission in a row,

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the landers ultimeter failed, although it was a different problem

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with the spacecraft's ultimeter this time. It is still unclear

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why Athena's rangefinder failed, perhaps due to a thermal or

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vibration event. It's frustrating to fail for a similar reason,

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but all the pieces for success are there, and in

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the demanding environment of spaceflight, Intuitive Machines is close, Ultimus said,

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in an effort to encourage his troops. Ultimus has been

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communicating this message to employees over the last week. It's

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like losing our final four game in an NBA title,

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he said. You lose it, and then what do you do.

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You don't give up. You go back in, you start

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training again, you start working out again, and that's what

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the team is doing, he said. The company is well

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capitalized and already under contract with NASA for two additional

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landing missions the later this decade. They also have the

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Lunar Relay Network contract valued up to four point eight

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billion and more. The financial runway to achieve Intuitive Machines

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ambitions remains open. I would say it's more disappointing than

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really a material setback, Ultimus said. The world was watching,

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and we put our heart and soul into this company

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and this vehicle, and I look into the eyes of

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the team and they had such ambitions for this mission

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Athena and Gracie the Hopper. I mean it was a

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big leap. It might have been too big a leap

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on that second mission. Now, I really have to say

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putting something on the moon, especially in a private company

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situation is a real achievement. I've got to congratulate Ultimus

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in his team. It's fantastic work.

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We'll listening to the stary Daily Pristine Dunklin.

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Thank you for joining us for this Monday edition of

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Astronomy Daily, where we often just a few stories from

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the now famous Astronomy Daily news leak, which you can

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receive in your email every day, just like Hallie and

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I do. And to do that, just visit our url

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Astronomy Daily dot io and place your email address in

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the slot provided. Just like that, you'll be receiving all

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the latest news about science, space, science and astronomy from

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around the world as it's happening. And not only that,

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you can interact with us by visiting at astro Daily

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pod on x or at our new Facebook page, which

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is of course Astronomy Daily on Facebook. See you there, Astronomy,

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We'll see and Haley Space, Space, Science, and Astronomy.

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NASA is preparing for substantial budget cuts that may force

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the cancelation of ongoing and upcoming missions across the Solar System,

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leaving it facing a brutal future. Experts have warned the

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Space Agency has already begun some layoffs as part of

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the extensive restructuring of US federal agencies by the Department

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of Government Efficiency, or DOGE, an independent task force led

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by Elon Musk. Earlier this week, it announced it would

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close its Office of Technology Policy and Strategy, the Office

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of the Chief Scientist, and a Diversity, Equity, Inclusion and

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Accessibility brand in the Office of Diversity and Equal Opportunity

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in Washington, d C. Representing a total of twenty three

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jobs at the agency. Change of this magnitude is never easy,

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but our strength comes from our shared commitment to our

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mission and each other. Janet Petro, NASA's acting administrator, wrote

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in an email to staff, I encourage you to support

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one another as we move forward. One employee of the

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Office of Technology Policy and Strategy, who learned they had

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been laid off this week and were granted anonymity because

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of fear of reprisal, says they were an easy target

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because their office was established under the administration of Joe Biden.

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Some people thought this might be coming, they say. The

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roles of chief Technologist and Chief Economist for NASA were

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within this office, which helped with strategic planning across the agency.

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Says the employee. That included managing the recent uptick and

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lunar missions and making sure those missions don't interfere with

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one another when planning Moon based landing sites and operations.

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There's a lot of interest in the lunar South Pole,

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and there's concern about operating near one another, they said,

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such as kicking up dust that could coat solar panels

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on other vehicles. I don't think these issues will be

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tackled moving forward. These losses are expected to be just

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the start of a much larger cull at NASA. Casey

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Tryer at US space exploration advocacy group The Planetary Society

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says there are rumors that in his upcoming budget request,

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President Donald Trump will direct NASA's overall science budget to

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be cut by as much as fifty percent in favor

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of spending money on crude space exploration. That would be

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a blow to NASA's Science Mission director at Office, which

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handles pretty much everything NASA does that's not a crude

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space flight mission, says Dryer. It currently has a budget

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of about seven billion dollar out of NASA's total twenty

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five billion dollar annual budget. A scientist familiar with NASA's

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policy decisions speaking anonymously for fear of reprisal, says that

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any cuts requested by the President will still need to

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be approved by Congress, which might not so readily support them.

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NASA is really beloved on a bipartisan basis, they say,

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But if the cuts did go ahead, they would essentially

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be the end of NASA science. They add, no mission

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will be safe. Having the budget would be a profoundly

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brutal consequence that would symbolize the nation turning its back

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on the Cosmos, says Dryer, and would result in many

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missions cancelation. While some missions in their prime, like the

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James webs based Telescope, would probably survive, those most at

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risk are missions either in early planning stages or later

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in their lives. That could include climate satellites, the Hubble

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spased telescope, the Perseverance and Curiosity rovers on Mars, and

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the Voyager missions, which were the first spacecraft to ever

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leave our Solar system. The effects on NASA could be permanent.

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If you completely destroy the pipeline of people, you have

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a significant and long lasting console sequence, says Dryer. It

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is an extinction level event. In a letter to Petro

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this week, Zoey Lofgren of California, the top Democrat on

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the House Science, Space and Technology Committee, urged NASA to

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fight back against the cuts. Doache will seek to slash

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and burn core functions of NASA, she wrote, it is

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imperative that you stand up for NASA's critical work. Speaking

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to new scientists, Lofgren warned that the situation could have

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international ramifications. Dismantling NASA's highly skilled workforce would be a

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giant leap backwards for the United States and enable a

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giant leap forward for China. She said, senseless and reckless

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reductions will cripple the agency's ability to maintain its leadership

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in cutting edge innovation, curiosity driven science, and human exploration.

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Astronomy day Lee.

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Now you may have thought Satins one hundred and forty

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six moons was impressive. Think again. The ringed planet's moon

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caunt is nearly doubled, with the official WAKINGGNIT of one

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hundred and twenty eight new Saturnian moons, bringing its total

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to an astonishing wait for it, two hundred and seventy

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four moons. That makes Jupiters ninety five look a bit

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poultry and our single moon downright embarrassing, just kidding. We

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love a moon. I love our moon, my favorite celestial body.

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A team of astronomers from Taiwan, Canada, the US, and

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France discovered the one hundred and twenty eight new moons

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in twenty twenty three using the Canada France Hawaii Telescope

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cf HT. However, the moons weren't officially recognized by the

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International Astronomical Union, the governing body for such affairs, until Tuesday,

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March eleven. Most of the moons were irregular and tiny,

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just a few miles across by comparison our moon, the

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wonderful Earth's moon lunar has a diameter of two one

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hundred and fifty nine miles or three thy four hundred

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and seventy five kilometers, which I'm completely used to because

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I'm an Australian and the large distances don't bother me

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a bit. But they do have proven orbits around the Saturn,

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which is a key element of official moon candidacy. Australia,

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on the other hand, does not have a proven orbit

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around Saturn. Just want to make that clear. These moons

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are a few kilometers in size and are likely all

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fragments of a smaller number of originally captured moons that

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were broken apart by violent collisions either with other Saturnian

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moons or with parsing commets. Doctor Brett Gladman, Professor in

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the University of British Columbia Department of Physics and Astronomy,

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said in a statement, perhaps the most impressively this discovery

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of one hundred and twenty eight year moons wasn't the

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first time this team added to Saturn's moon count. Between

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